<template>
  <div class="outer">
    <!-- 三级分类导航 -->
    <TypeNav />
    <div class="main">
      <div class="py-container">
        <!--面包屑导航-->
        <div class="bread">
          <ul class="fl sui-breadcrumb">
            <li>
              <span href="#">全部结果</span>
            </li>
          </ul>
          <ul class="fl sui-tag">
            <!-- 面包屑导航功能 -->
            <!-- 主要导航搜索 -->
            <li class="with-x" v-if="$route.query.categoryName">
              <span>{{ $route.query.categoryName }}</span>
              <span class="iconfont icon-close" @click="delCategory"></span>
            </li>
            <!-- 搜索框搜索 -->
            <li class="with-x" v-if="$route.query.keyword">
              <span>{{ $route.query.keyword }}</span>
              <span class="iconfont icon-close" @click="delSearch"></span>
            </li>
            <!-- 品牌搜索 -->
            <li class="with-x" v-if="searchOptions.trademark">
              <span>{{ searchOptions.trademark.split(':')[1] }}</span>
              <span class="iconfont icon-close" @click="delTrademark"></span>
            </li>
            <!-- 属性搜索 -->
            <li
              class="with-x"
              v-for="(prop, index) in searchOptions.props"
              :key="prop"
            >
              <span>{{ `${prop.split(':')[2]}:${prop.split(':')[1]}` }}</span>
              <span class="iconfont icon-close" @click="delAttrs(index)"></span>
            </li>
          </ul>
        </div>

        <!-- 搜索器 -->
        <SearchSelector
          :trademarkList="trademarkList"
          :attrsList="attrsList"
          @searchTrademark="searchTrademark"
          @searchProps="searchProps"
        />

        <!--商品展示区-->
        <div class="details clearfix">
          <!-- 列表操作区 -->
          <div class="sui-navbar">
            <div class="navbar-inner filter">
              <ul class="sui-nav">
                <li
                  :class="{ active: splittedOrder[0] === '1' }"
                  @click="setOrder('1')"
                >
                  <a
                    >综合<span
                      v-show="splittedOrder[0] === '1'"
                      :class="['iconfont', `icon-direction-${getIconSuffix}`]"
                    ></span
                  ></a>
                </li>
                <li>
                  <a href="#">销量</a>
                </li>
                <li>
                  <a href="#">新品</a>
                </li>
                <li>
                  <a>评价</a>
                </li>
                <li
                  :class="{ active: splittedOrder[0] === '2' }"
                  @click="setOrder('2')"
                >
                  <a
                    >价格<span
                      v-show="splittedOrder[0] === '2'"
                      :class="['iconfont', `icon-direction-${getIconSuffix}`]"
                    ></span
                  ></a>
                </li>
              </ul>
            </div>
          </div>
          <!-- 商品列表 -->
          <div class="goods-list">
            <ul class="yui3-g">
              <li class="yui3-u-1-5" v-for="goods in goodsList" :key="goods.id">
                <router-link
                  :to="{
                    name: 'Detail',
                    params: {
                      id: goods.id
                    }
                  }"
                >
                  <div class="list-wrap">
                    <div class="p-img">
                      <a><img :src="goods.defaultImg" /></a>
                    </div>
                    <div class="price">
                      <strong>
                        <em>¥</em>
                        <i>{{ goods.price }}</i>
                      </strong>
                    </div>
                    <div class="attr">
                      <a>{{ goods.title }}</a>
                    </div>
                    <div class="commit">
                      <i class="command">已有<span>2000</span>人评价</i>
                    </div>
                  </div>
                </router-link>
              </li>
            </ul>
          </div>
          <!-- 分页器 -->
          <!-- 
              background 带背景色
              layout 分页器组件
              total 总数
              current-page 当前页码
              page-size 每页条数
              current-change 当current-page发送变化时触发的事件
             -->
          <div class="fr page">
            <el-pagination
              background
              layout="prev, pager, next,total"
              :total="total"
              @current-change="handleCurrentChange"
              :current-page="searchOptions.pageNo"
              :page-size="searchOptions.pageSize"
            >
            </el-pagination>
            <!-- <div class="sui-pagination clearfix">
              <ul>
                <li class="prev disabled">
                  <a href="#">«上一页</a>
                </li>
                <li class="active">
                  <a href="#">1</a>
                </li>
                <li>
                  <a href="#">2</a>
                </li>
                <li>
                  <a href="#">3</a>
                </li>
                <li>
                  <a href="#">4</a>
                </li>
                <li>
                  <a href="#">5</a>
                </li>
                <li class="dotted"><span>...</span></li>
                <li class="next">
                  <a href="#">下一页»</a>
                </li>
              </ul>
              <div><span>共10页&nbsp;</span></div>
            </div> -->
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
// 引入自定义分页器
import SearchSelector from './SearchSelector'
import TypeNav from '@/components/TypeNav'
// 引入获取；列表数据的函数
import { reqGetGoodsList } from '@/api/search'
export default {
  name: 'MySearch',
  components: {
    SearchSelector,
    TypeNav
  },
  mounted() {
    // 调用search函数，请求数据
    this.search()
  },
  data() {
    return {
      // 分页器显示的总页数数据
      total: 0,
      // 品牌列表数据
      trademarkList: [],
      // 商品列表数据
      goodsList: [],
      // 属性列表数据
      attrsList: [],
      // 搜索条件的参数列表
      searchOptions: {
        // 属性： 属性id:属性值:属性名
        props: [],
        // 品牌： 品牌id: 品牌名称
        trademark: '',
        // 排序：  排序类型：1综合 2价格  排序标识：asc升序 desc降序
        order: '1:desc',
        // 当前页码
        pageNo: 1,
        // 每页条数
        pageSize: 5
      }
    }
  },
  methods: {
    // 封装搜索的函数
    async search() {
      const result = await reqGetGoodsList({
        // 传递查询字符串参数
        ...this.$route.query,
        // 传递点击选项的参数
        ...this.searchOptions
      })
      // result是一个对象
      const { trademarkList, goodsList, attrsList, total } = result
      ;(this.trademarkList = trademarkList),
        (this.goodsList = goodsList),
        (this.attrsList = attrsList),
        (this.total = total)
    },
    // 品牌搜索
    searchTrademark(trademark) {
      // 如果点击的是当前选中的这个，则返回，也就是不可以重复点击当前项
      if (this.searchOptions.trademark === trademark) return
      this.searchOptions.trademark = trademark
      this.search()
    },
    // 属性搜索
    searchProps(prop) {
      if (this.searchOptions.props.includes(prop)) return
      this.searchOptions.props.push(prop)
      this.search()
    },
    // 设置排序
    setOrder(newType) {
      let [type, flag] = this.splittedOrder
      // 点击相同的type，flag取反，点击不同的type，flag取desc
      if (type === newType) {
        flag = flag === 'asc' ? 'desc' : 'asc'
      } else {
        flag = 'desc'
      }
      this.searchOptions.order = `${newType}:${flag}`
      this.search()
    },
    // 当前页码发生变化时触发，接收最新页作为参数
    handleCurrentChange(currentPage) {
      // 把这个点击后的新页面的值赋值给data中当前页面
      this.searchOptions.pageNo = currentPage
      // 再调用search，重新请求页面
      this.search()
    },

    // 面包屑导航的methods，点击删除选中的首页导航列表条件
    delCategory() {
      // 在$route中将分类参数删除
      const { keyword } = this.$route.query
      const query = {}
      if (keyword) {
        query.keyword = keyword
      }
      // 重新跳转，不携带分类列表参数
      this.$router.push({
        name: 'Search',
        query
      })
      // 不需要从新调用search()，因为路径是被监视饿，只要路径一改，自动调用search()
    },
    // 面包屑导航的methods，点击删除选中的搜索框的搜索条件
    delSearch() {
      // 删除$route中的keyword参数再跳转
      const query = { ...this.$route.query }
      delete query.keyword
      this.$router.push({
        name: 'Search',
        query
      })
    },
    // 面包屑导航的methods，点击删除选中的品牌搜索条件
    delTrademark() {
      // 将条件设置为空，重新调用search()
      this.searchOptions.trademark = ''
      this.search()
    },
    // 面包屑导航的methods，点击删除选中的属性搜索条件
    delAttrs(index) {
      this.searchOptions.props.splice(index, 1)
      this.search()
    }
  },
  watch: {
    // 如果是搜索框搜索和主页的分类选项搜索，那么路径会发生变化，
    // 通过监视路径变化来达到搜索条件，就不用组件间通信了
    $route() {
      // 搜索框搜索和主页的分类选项搜索
      this.search()
      // 路径变化就表用search函数，search函数内部再带着参数去请求接口函数
    }
  },
  computed: {
    splittedOrder() {
      return this.searchOptions.order.split(':')
    },
    // 获取图标后缀
    getIconSuffix() {
      return this.splittedOrder[1] === 'asc' ? 'up' : 'down'
    }
  }
}
</script>

<style lang="less" scoped>
.main {
  margin: 10px 0;

  .py-container {
    width: 1200px;
    margin: 0 auto;

    .bread {
      margin-bottom: 5px;
      overflow: hidden;

      .sui-breadcrumb {
        padding: 3px 15px;
        margin: 0;
        font-weight: 400;
        border-radius: 3px;
        float: left;

        li {
          display: inline-block;
          line-height: 18px;

          a {
            color: #666;
            text-decoration: none;

            &:hover {
              color: #4cb9fc;
            }
          }
        }
      }

      .sui-tag {
        margin-top: -5px;
        list-style: none;
        font-size: 0;
        line-height: 0;
        padding: 5px 0 0;
        margin-bottom: 18px;
        float: left;

        .with-x {
          font-size: 12px;
          margin: 0 5px 5px 0;
          display: inline-block;
          overflow: hidden;
          color: #000;
          background: #f7f7f7;
          padding: 0 7px;
          height: 20px;
          line-height: 20px;
          border: 1px solid #dedede;
          white-space: nowrap;
          transition: color 400ms;
          cursor: pointer;

          i {
            margin-left: 10px;
            cursor: pointer;
            font: 400 14px tahoma;
            display: inline-block;
            height: 100%;
            vertical-align: middle;
          }

          &:hover {
            color: #28a3ef;
          }
        }
      }
    }

    .details {
      margin-bottom: 5px;

      .sui-navbar {
        overflow: visible;
        margin-bottom: 0;

        .filter {
          min-height: 40px;
          padding-right: 20px;
          background: #fbfbfb;
          border: 1px solid #e2e2e2;
          padding-left: 0;
          border-radius: 0;
          box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);

          .sui-nav {
            position: relative;
            left: 0;
            display: block;
            float: left;
            margin: 0 10px 0 0;

            li {
              float: left;
              line-height: 18px;

              a {
                display: block;
                cursor: pointer;
                padding: 11px 15px;
                color: #777;
                text-decoration: none;
              }

              &.active {
                a {
                  background: #e1251b;
                  color: #fff;
                }
              }
            }
          }
        }
      }

      .goods-list {
        margin: 20px 0;

        ul {
          display: flex;
          flex-wrap: wrap;

          li {
            height: 100%;
            width: 20%;
            margin-top: 10px;
            line-height: 28px;

            .list-wrap {
              .p-img {
                padding-left: 15px;
                width: 215px;
                height: 255px;

                a {
                  color: #666;

                  img {
                    max-width: 100%;
                    height: auto;
                    vertical-align: middle;
                  }
                }
              }

              .price {
                padding-left: 15px;
                font-size: 18px;
                color: #c81623;

                strong {
                  font-weight: 700;

                  i {
                    margin-left: -5px;
                  }
                }
              }

              .attr {
                padding-left: 15px;
                width: 85%;
                overflow: hidden;
                margin-bottom: 8px;
                min-height: 38px;
                cursor: pointer;
                line-height: 1.8;
                display: -webkit-box;
                -webkit-box-orient: vertical;
                -webkit-line-clamp: 2;

                a {
                  color: #333;
                  text-decoration: none;
                }
              }

              .commit {
                padding-left: 15px;
                height: 22px;
                font-size: 13px;
                color: #a7a7a7;

                span {
                  font-weight: 700;
                  color: #646fb0;
                }
              }

              .operate {
                padding: 12px 15px;

                .sui-btn {
                  display: inline-block;
                  padding: 2px 14px;
                  box-sizing: border-box;
                  margin-bottom: 0;
                  font-size: 12px;
                  line-height: 18px;
                  text-align: center;
                  vertical-align: middle;
                  cursor: pointer;
                  border-radius: 0;
                  background-color: transparent;
                  margin-right: 15px;
                }

                .btn-bordered {
                  min-width: 85px;
                  background-color: transparent;
                  border: 1px solid #8c8c8c;
                  color: #8c8c8c;

                  &:hover {
                    border: 1px solid #666;
                    color: #fff !important;
                    background-color: #666;
                    text-decoration: none;
                  }
                }

                .btn-danger {
                  border: 1px solid #e1251b;
                  color: #e1251b;

                  &:hover {
                    border: 1px solid #e1251b;
                    background-color: #e1251b;
                    color: white !important;
                    text-decoration: none;
                  }
                }
              }
            }
          }
        }
      }

      .page {
        display: flex;
        justify-content: center;
        align-items: center;
        margin: 20px;

        .sui-pagination {
          margin: 18px 0;

          ul {
            margin-left: 0;
            margin-bottom: 0;
            vertical-align: middle;
            width: 490px;
            float: left;

            li {
              line-height: 18px;
              display: inline-block;

              a {
                position: relative;
                float: left;
                line-height: 18px;
                text-decoration: none;
                background-color: #fff;
                border: 1px solid #e0e9ee;
                margin-left: -1px;
                font-size: 14px;
                padding: 9px 18px;
                color: #333;
              }

              &.active {
                a {
                  background-color: #fff;
                  color: #e1251b;
                  border-color: #fff;
                  cursor: default;
                }
              }

              &.prev {
                a {
                  background-color: #fafafa;
                }
              }

              &.disabled {
                a {
                  color: #999;
                  cursor: default;
                }
              }

              &.dotted {
                span {
                  margin-left: -1px;
                  position: relative;
                  float: left;
                  line-height: 18px;
                  text-decoration: none;
                  background-color: #fff;
                  font-size: 14px;
                  border: 0;
                  padding: 9px 18px;
                  color: #333;
                }
              }

              &.next {
                a {
                  background-color: #fafafa;
                }
              }
            }
          }

          div {
            color: #333;
            font-size: 14px;
            float: right;
            width: 241px;
          }
        }
      }
    }
  }
}
</style>
